GEO 101 World Human Geography
Spring 2008
Lecture Outline

Distance

Types of Distance

• Absolute Distance
• Relative Distance
• Cognitive distance

Friction of Distance

 

Diffusion

• Expansion or Contagious Diffusion
• Hierarchical Diffusion
• Mixed Diffusion

Barriers to Diffusion

• Absolute
• Permeable

Examples

West Nile Virus Maps

Human-- 2001 2002 2003 2004 2005

Birds -- 2001 2002 2003 2004 2005

Animated Maps

Irrigation in Nebraska